Hi guys,
I've been running traffic on 3 networks for the last two days.

Hello,
please tell me more about what you have done : was this direct-linked or through a LP, what kind of offer was it, what GEO, what is the payout per conversion/lead... how did you get your creatives - you made them based on what, or you ripped them?
Im asking this because the info you gave so far is very vague and I cannot give you any advice now.
Your questions :
1. this is normal, you will be optimizing placements and cutting the bad ones, once they have sent enough traffic. That's why it's recommended to start with low paying offers as you don't have to wait that long for a conversion.
2. if you're promoting some high paying NUTRA offer and poor creatives ... then its quite normal to not see much conversions. Maybe you are direct-linking an offer that cannot work that way ... I need more info to be able to answer.